A Japanese mountain rhizome whose freshly grated paste delivers a fleeting nasal heat — and whose green tube imposters are almost always dyed horseradish.
Where it comes from
True wasabi (hon-wasabi) is the rhizome of Eutrema japonicum, a notoriously fussy perennial that grows wild in cold, fast-flowing mountain streams of Japan. Commercial cultivation requires shaded, gravel-bedded running water, which is why authentic wasabi is rare and expensive. Most “wasabi” sold worldwide is dyed horseradish plus mustard with a touch of true wasabi powder.
Flavor & pairing
Fresh wasabi delivers the same allyl isothiocyanate kick as horseradish but more delicately, with a grassy sweetness behind the sting and a green-vegetable freshness. The heat fades within a minute, far faster than chili. Wasabi suits raw fish, soy sauce, soba, soft cheeses, and roasted beef.
How it’s used
Traditional sushi chefs grate the fresh rhizome on a shark-skin board (oroshi) into a fine, sticky paste at the moment of service, then tuck it between fish and rice. Soba dipping sauces include it. Modern Western chefs experiment with wasabi mayonnaise on burgers and wasabi peas as bar snacks.
Trade history
The rising popularity of sushi globally has pushed wasabi cultivation to Oregon, Tasmania, England, and Iceland, all with mixed commercial success.
Find more spices by letter
Wasabi starts with W and ends with I. Browse other spices along the same letter.
Spices that contain a letter from "Wasabi":